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Age and growth of the grey mullets (Pisces, Mugilidae) in the Ria de Aveiro (Portugal)
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Orientador(es)
Resumo(s)
EDAD Y CRECiMIENTO DE LOS MUGILiDOS (PISCES, Mugilidae) DE LA RÍA DE AVEIRO, PORTUGAL. Se estudiaron la abundancia relativa y el índice de crecimiento, tanto en relación a tamaño como a peso, de los mugílidos de la ría de Aveiro. Los resultados obtenidos indicaron que, normalmente y durante todo el ano, L. aurata era la especie dominante en cada una de las zonas de muestreo. La migración de los mugílidos jóvenes, desde la zona litoral hasta la laguna, ocurría durante los meses de septiembre a noviembre. Por otra parte, los índices de crecimiento registraron un período de rápido desarrollo durante primavera y verano, que fue disminuyendo o cesó completamente en el transcurso de los cinco o seis meses siguientes. Hay indicios de que la temperatura es un factor importante en la fase inicial del desarrollo.
ABSTRACT: Relative abundance and growth both in length and weight of the grey mullet in Ria de Aveiro were studied. The results showed that L. aurata was usually the dominant species throughout the year in each of three sampling zones. The juveniles of grey mullets migrated from the littoral zone to the lagoon in September-November. Moreover, the growth patterns showed a period of rapid growth during the spring and summer which declined or ceased for the next 5 or 6 months. There is an indication that temperature was important for growth in the early stages of growth.
ABSTRACT: Relative abundance and growth both in length and weight of the grey mullet in Ria de Aveiro were studied. The results showed that L. aurata was usually the dominant species throughout the year in each of three sampling zones. The juveniles of grey mullets migrated from the littoral zone to the lagoon in September-November. Moreover, the growth patterns showed a period of rapid growth during the spring and summer which declined or ceased for the next 5 or 6 months. There is an indication that temperature was important for growth in the early stages of growth.
Descrição
Palavras-chave
Edad Crecimiento Mugílidos Ría de Aveiro (Portugal) Age Growth Grey Mullet
Contexto Educativo
Citação
Arruda, L. M, J.M.N. Azevedo & A. I. Neto (1991). Age and growth of the grey mullets (Pisces, Mugilidae) in the Ria de Aveiro (Portugal). "Scientia Marina", 55(3): 497-504.
Editora
Institut de Ciències del Mar de Barcelona (CSIC)